fix(matchexpr): expose 'isAgent' field for evaluation (backport #598) (…

…#599)

* fix(matchexpr): expose 'isAgent' field for evaluation (#598)

(cherry picked from commit f319134)

* chore(schema): automatic update

---------

Co-authored-by: Andrew Azores <me@andrewazor.es>
Co-authored-by: Cryostat CI <rhjavamonitoring@gmail.com>

schema/openapi.yaml

@@ -362,7 +362,7 @@ info:
     name: Apache 2.0
     url: https://github.com/cryostatio/cryostat3/blob/main/LICENSE
   title: Cryostat API
-  version: 3.0.0-snapshot
+  version: 3.0.1-snapshot
 openapi: 3.0.3
 paths:
   /api/beta/credentials/{connectUrl}:

src/main/java/io/cryostat/expressions/MatchExpressionEvaluator.java

@@ -223,6 +223,7 @@ public static class ScriptCreation extends Event {}
      * expression-relevant fields exposed, connection URI exposed as a String, etc.
      */
     private static record SimplifiedTarget(
+            boolean isAgent,
             String connectUrl,
             String alias,
             @Nullable String jvmId,
@@ -241,6 +242,7 @@ private static record SimplifiedTarget(
 
         static SimplifiedTarget from(Target target) {
             return new SimplifiedTarget(
+                    target.isAgent(),
                     target.connectUrl.toString(),
                     target.alias,
                     target.jvmId,